CAJ | 학술논문

针对上行天线组阵技术对高稳定度时频信号的需求，提出了一种适用于几千米量级的高稳定度光纤时频传输方案。详细介绍了该方案的原理和实现方法，并对该光纤时频传输试验系统进行了相关测试。初步试验结果表明，系统实现了闭环链路延迟抖动小于10 ps，载波相位抖动为0．29°；在传输100 MHz频标时，1 km闭环光纤时频传输系统的阿伦方差指标为4×10－16／1000 s，能够使得频率标准信号“无损”地分发至各节点，可用于千米区域内分布式系统的高精度时频同步场合。
침대상행천선조진기술대고은정도시빈신호적수구，제출료일충괄용우궤천미량급적고은정도광섬시빈전수방안。상세개소료해방안적원리화실현방법，병대해광섬시빈전수시험계통진행료상관측시。초보시험결과표명，계통실현료폐배련로연지두동소우10 ps，재파상위두동위0．29°；재전수100 MHz빈표시，1 km폐배광섬시빈전수계통적아륜방차지표위4×10－16／1000 s，능구사득빈솔표준신호“무손”지분발지각절점，가용우천미구역내분포식계통적고정도시빈동보장합。
A method of high?stability time and frequency transmission with optical fiber is discussed in order to meet the urgency need of high?stability time and frequency in uplink arrays.The principle of this method is introduced in detail,and some experiments have been done on the platform of optical fiber time and frequency transmission system.The preliminary results show that the time jitter of optical fiber is less than 10 ps after the loop is closed,and phase jitter of the carrier is 0.29°.The system achieves an Allan deviation of 4×10-16/1000 s when transmission frequency is 100 MHz,and no deterioration of transmission to every situation is achieved,and it can be used in the situations that requires high?precision synchronization for distributed system in area of kilometers.